The official National Weather Service forecast for Francisco — 38.3323°N, 87.4453°W, 2.8 miles from I-69. Forecasts here are written by NWS PAH, this county’s forecast office.
| Gibson County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 46 | 56 | 68 | 77 | 85 | 88 | 87 | 82 | 70 | 56 | 45 | 67 |
| Avg low °F | 24 | 27 | 36 | 45 | 56 | 64 | 68 | 66 | 58 | 47 | 36 | 28 | 46 |
| Precip in | 3.6 | 3.2 | 4.6 | 5.2 | 5.2 | 4.8 | 4.6 | 3.1 | 3.5 | 3.5 | 3.5 | 3.8 | 48.6 |
1996–2025 normals for Gibson County — the climate division Francisco sits in. All-time county record high 107.2°F (2012-06-29); record low -18.2°F (1977-01-17). Source: NOAA / National Weather Service.